Liquid-delivering apparatus



Dec. 30, 1930. R. MEIJER 1,787,389

LIQUID DELIVERING APPARATUS Filed Dec. 27. 1928 2 Sheets-Sheet l FigJ.

Dec. 30, 1930. R. MEIJER 1,787,389

LIQUID DELIVERING APPARATUS Filed Dec. 27, 1928 2 Sheets-Sheet 2 Fig.2.

Patented Dec. 30, 1930 UNITED STATES PATENT OFFICE REINIER MEIJ'ER, FVOORSCHOTEN, NETHERLANDS, ASSIGNOR TO DE BATAAFSCHE PETROLEUMMAATSCHAPPIJ, OF THE HAGUE, NETHERLANDS, A COMPANY OF THE NETHERLANDSLIQUID-DELIVERIN G APPARATUS Application filed December 27, 1928, SerialNo. 328,801, and in the Netherlands November 28, 1928.

deep wells, the use of a conventional float valve device has theinconvenience that, when the rate of feed is small, the valve remainspoised in a slightly lifted position, whereby both the valve body andthe valve seat are subject to rapid wear, especially when the liquidcontains grit or like impurities. When worn out, the valve allows theliquid and eventually also air or gas to escape, which, however, it isexactly intended to prevent.

Said inconvenience is effectually met by my present apparatus in which avalve of novel construction is controlled in a special manner by afloat.

In order that my invention may be well understood, I shall now proceedto describe the same with reference to the annexed drawing, on whichFig. 1 illustrates in a side elevational view a gas separator ofordinary construction as used for pretreating crude oil, associated witha delivering apparatus in accordance with my invention.

Fig. 2 is a vertical sectional elevation of the lower portion of saidapparatus, on an on larged scale.

Figs. 8 and 4 are diagrams of two other embodiments of my invention.

Crude oil mixed with gas and grit flows into the gas separator 1 througha nozzle 2. In said separator, the gas is liberated so that it canescape through a nozzle 3 at the top, whereas the grit, settled to thebottom, is drained periodically. The oil, mixed with a certain amount ofgas, flows through a pipe 4:,

a valve 9 and an inlet nozzle 11 into a float chamber 5, which by meansof a pipe 6 is also in communication with the top of the separator 1.The float chamber delivers the oil and grit mixture through an outlet 12and a valve into the discharge pipe 7. A byepass 8, connecting pipes 4eand 7, permits of the float valve apparatus being cut out when it shouldget out of order, in which case valves 9 and 10 are to be shut.

The float chamber 5 (Fig. 2) is provided, intermediate between its inlet11 and its outlet 12, with a lift valve 13 cooperating with a seat 1 1.Said valve 13 is of annular formation and secured to a cylindrical hood15 snugly fitting round a stationary cylindrical guide member 16. Saidhood has secured thereto a guide ring 17 for the spindle 18 of a float19, which in Fig. 2 is only partially shown and which is illustrated indotted lines in Fig. 1. The lower part of the float spindle 18 carriesan auxiliary valve 20 adapted to close a narrow passage 21 in the top ofthe hood 15. The chamber enclosed by the hood 15 and the guide member 16communicates with the outlet nozzle 12 through passages 22 and 23 and aport 25 controlled by a needle valve 24.

The apparatus so far described operates as follows:

Vihen crude oil is supplied to the float chamber 5 through nozzle 11,the auxiliary valve 20, loaded by the full Weight of the float 19, stillcloses the passage 21, so that the relatively high oil pressureprevailing in the separator 1 is prevented from also setting up in thepressure chamber within the hood 15 and the guide member 16. As aconsequence, valve 18 is forcibly pressed upon its seat 14 so that nooil can reach the outlet nozzle 12. hen the liquid within chamber 5 hasrisen to a predetermined level, the float 19 is lifted, whereby valve 20unseats and oil is forced through passage 21 into the hood 15. Theprogressive upward pressure thus exerted on the hood will eventuallyexceed the clownward pressure, owing to the difference between thediameters of the guide member 16 and'the outer circumferential edge ofvalve 13. At this moment, "alve 13 unseats, thus allowing oil to berapidly discharged and the surface of the oil to fall to a predeterminedlevel, at which the float 19 again forces valve 20 onto its seat. Theinflow of oil to the hood 15 is thereby interrupted, whereas thedischarge of oil from the hood continues through the throttle port 25,so that valve 13 gradually moves to its seating position.

The speed of the seating movement of valve 13 can be manually adjustedby means of the needle valve 2 1. Said speed should preferably be sothat the oil level falls with a greater speed than does the valve 13with associate parts, i. e. hood 15 and float 18. Thereafter, when valve13 has fallen into contact with its seat, the oil level-will first haveto rise again in order that the float may reopen valve 20 and thisreopening will take place earlier according as there is less air trappedin the hood, seeing that said air must I be compressed by the inflowingoil before the valve 13 can beunseated.

When valve 13 is seated, it is forced with considerable pressure ontoits seat 14, so that grit that might have got between said parts will becrushed and a reliable seal is ensured. The valve body 13 and its seat14 are hardened and mounted for easy renewal.

Obviously, I do not limit myself to the described apparatus, butconceive as within the scope of my invention any apparatus that fallwithin the scope of the claims, that may be ultimately allowed hereon.For instance, I may secure the hood to the wall of the'float chamber 5and connect the guiding member 16 with the valve 13, which, in thatcase, should not be of annular formation, but solid. With saidconstruction, valve 13 is normally opened by the liquid pressure andclosed whenever the falling float opens the passage through which liquidis adapted to flow into the stationary hood. This and still anotherembodiment of my invention are shown, by way of example, in thediagrammatic Figures 3 and 4, respectively, and do not require to beexplained in further detail.

What I claim is 1. In liquid delivering apparatus, a float chamberhaving an inlet and an outlet, an outlet valve, a float, a stationarycylindrical element, a cylindrical member secured to the outlet valveand adapted to telescope with respect to said element, a pressurechamber enclosed by said telescoping member and elelet, one of thesepassages being controlled by the float, and means for adjusting theeflective cross sectional area of the other of said passages.

3. In liquid delivering apparatus, a float chamber having an inlet andan outlet, an outlet valve, afloat, a stationary cylindrical element, acylindrical member connected to the outlet valve and adapted to slidewith respect to said element, a pressure chamber enclosed by saidsliding member and element, a passage between the float chamber and saidpressure chamber extending through a tubelike part of the wall of thesaid pressure chamber, a valve associated with the float and adapted tocontrol said passage, another passage between the said pressure chamberand the said outlet, and means for adjusting the effective crosssectional area of the last said passage.

In testimony whereof I aiiiX my signature.

REINIER MEIJER.

ment, a passage between the float chamber v and said pressure chamber, avalve associated with the float and adapted to control said passage,another passage between thesaid pressure chamber and the said outlet,and means for adjusting the effective cross sectional area of the lastsaid passage.

2. In liquid delivering apparatus, a float chamber having an inlet andan outlet, an outlet valve, a float, a stationary cylindrical element, acylindrical member connected to the'outlet valve and adapted to slidewith respect to said element, a pressure chamber enclosed by saidsliding member and element, a passage between the float chamber and saidpressure chamber, another passage between the said pressure chamber andthe said out- 7

